T150/150G/T400/400G Course Computers
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Type 150/150G/400/400G Course Computers Service Manual 83156-1
Type 150/400 Course Computers
Chapter 5: Functional Circuit Description
5.1. Test points on PCB
There are seven test points available on the Course Computer PCB. These are:
•
VPWR
Incoming Supply Voltage (12V or 24V)
•
V12
12V Systems – Incoming Supply
24V Systems - Regulated to 12V DC
•
3V
3.3V DC Rail Voltage (Used by Microprocessor)
•
5V
5V DC Rail Voltage
•
VIN+12V
Approx 12V above VPWR (for high-side FET drives)
•
VADC
Regulated 6.9V DC (for ADC conversion in fluxgate circuit)
•
0V
Ground
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